Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 115, Issue -, Pages 108-113Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2013.03.030
Keywords
Transparent; Self-cleaning; Antifogging; Silica; Nanoparticle thin film; Dip coating
Funding
- US National Science Foundation (NSF) [CMS-0645040, EPS-1003970]
- Arkansas Biosciences Institute
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Self-cleaning and antifogging coatings are of great interest for application in outdoor solar cell installations to mitigate the performance loss and associated maintenance costs due to environmental contamination. These coatings, applied to the cover glass of solar panels, can remove contaminants when wetted with rain water and transmit more sunlight in foggy weather. Herein, we report a super-hydrophilic silica nanoparticle film that exhibits the self-cleaning effect without relying on photocatalytic materials. When wetted with simulated light raining conditions, the coated glass removed 90% of surface contaminants, compared to only 48% removed from the bare glass. The deposited film created an antifogging surface in addition to increasing the solar transmittance (AM 1.5) of glass substrates by 4.3% over bare glass in the wavelength range of 350-1100 nm. (C) 2013 Elsevier B.V. All rights reserved.
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